diff options
| author | David S. Miller <davem@davemloft.net> | 2007-12-25 02:20:33 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-12-26 19:33:46 -0800 |
| commit | bcea1db16ba1c45ccebb3bfb8441642d1342c4d5 (patch) | |
| tree | 6930a11e79193d56e2c0f344c04ac5c37a56f7eb | |
| parent | 11ee29577cc1637f94d903a6ea322cf1ed8ce1b3 (diff) | |
[SPARC64]: Implement pci_resource_to_user()
This makes libpciaccess able to mmap() resources of the
device properly.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/sparc64/kernel/pci.c | 16 | ||||
| -rw-r--r-- | include/asm-sparc64/pci.h | 4 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index 63b3ebc0c3c..a61c38fe75e 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -1275,4 +1275,20 @@ int pci_dma_supported(struct pci_dev *pdev, u64 device_mask) return (device_mask & dma_addr_mask) == dma_addr_mask; } +void pci_resource_to_user(const struct pci_dev *pdev, int bar, + const struct resource *rp, resource_size_t *start, + resource_size_t *end) +{ + struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller; + unsigned long offset; + + if (rp->flags & IORESOURCE_IO) + offset = pbm->io_space.start; + else + offset = pbm->mem_space.start; + + *start = rp->start - offset; + *end = rp->end - offset; +} + #endif /* !(CONFIG_PCI) */ diff --git a/include/asm-sparc64/pci.h b/include/asm-sparc64/pci.h index 1393e57d50f..f59f2571295 100644 --- a/include/asm-sparc64/pci.h +++ b/include/asm-sparc64/pci.h @@ -200,6 +200,10 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) struct device_node; extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); +#define HAVE_ARCH_PCI_RESOURCE_TO_USER +extern void pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, + resource_size_t *start, resource_size_t *end); #endif /* __KERNEL__ */ #endif /* __SPARC64_PCI_H */ |